Indian giver vs bestower

Indian giver and bestower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian giver	Yes	No	No	No
bestower	Yes	No	No	No

As nouns, bestower is a hypernym of Indian giver; that is, bestower is a word with a broader meaning than Indian giver:

Indian giver: an offensive term for someone who asks you to return a present he has given you
bestower: person who makes a gift of property

Other hypernyms of Indian giver include conferrer, donor, giver, presenter.

Indian giver (noun)	bestower (noun)
an offensive term for someone who asks you to return a present he has given you	person who makes a gift of property